中文摘要：

针对自动发电控制（automatic generation control，AGC）过程中难以把握潮流状态的问题，在安全经济调度确定的AGC机组的基点、参与因子，以及超短期负荷预报提供节点分配因子和功率因数变化规律的基础上，结合动态潮流、电热耦合潮流等概念，利用实时区域控制偏差（area control error，ACE）信号，建立了伴随AGC机组控制过程的潮流模型和算法。实际算例对所提模型和算法进行了验证，结果表明，在跟踪AGC控制过程中计算潮流非常重要，这对于跟踪输电线路温度变化，监视系统安全性能等都是有益的。

英文摘要：

It is difficult to handle power flow status during the process of automatic generation control （AGC）. For this reason, a model of power flow accompanying with the control process of AGC unit and corresponding algorithm are built according to the base power and participation factor of AGC unit determined by secure economic dispatching and the nodal distribution factor provided by super-short-term load forecasting and the variation law of power factor, as well as combining with the concepts of dynamic power flow and electro-thermal coupling power flow and using real-time area control error （ACE） signal. The proposed model and algorithm are verified by practical calculation examples. Verification results show that the calculation of power flow status is very important and it is conducive to the tracking of temperature change of transmission line and the monitoring of security performance of power system during the tracking of AGC process.